8 new clubs, taking it to 28, will bring in nearly $1B to the league in expansion fees. That's a lot of money to inject into a league supposedly losing money - granted, expansion fees are like a ponzi scheme if that's the sole source of positive revenue for certain teams - which it is for nearly half the league per a recent Forbes article for 2014 revenue.
Also, with so many teams, parity is the new Unicorn - it won't exist because due to numbers alone (unless parity actually refers to those that don't win), each team will only have a 3.57% chance of winning during a given season (all things being equal). With the current rules, and that many teams, once a club gets in to a funk, they'll never be able to pull themselves out without the ability to spend above the current cap. MLS can keep their Cap if they want, just institute a luxury tax on those that bust the upper threshold. Cheap owners have their operating expenses paid for via Lux Tax, and ambitious owners can field the teams they want.
As
LionNYC mentioned above, 30 teams would make for a great Inter-MLS 20/10 promotion/regulation league(s). The
lower league, MLS2, would still have the MLS moniker and moxy, and there would be extra interest created - which teams are primed to win MLS1, Relegate from MLS1, and Promote from MLS2. And the Cosmos will still be looking on from the outside saying
what if & if only.....
And yet..... NYCFC still may be in Yankee Stadium if DeBlasio somehow wins reelection.....